CN110721426A - Marine constant-pressure fire extinguishing system - Google Patents
Marine constant-pressure fire extinguishing system Download PDFInfo
- Publication number
- CN110721426A CN110721426A CN201911011021.2A CN201911011021A CN110721426A CN 110721426 A CN110721426 A CN 110721426A CN 201911011021 A CN201911011021 A CN 201911011021A CN 110721426 A CN110721426 A CN 110721426A
- Authority
- CN
- China
- Prior art keywords
- fire
- pressure
- constant
- fire fighting
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000013535 sea water Substances 0.000 claims abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000008400 supply water Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000005059 dormancy Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
- A62C3/10—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in ships
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a constant-pressure fire fighting system for a ship, which comprises a constant-pressure fire fighting pump set, a main fire pump, a fire main pipe and a fire water supply pipeline, wherein the constant-pressure fire fighting pump set is arranged on a first branch pipe, the main fire pump is arranged on a second branch pipe, the first branch pipe and the second branch pipe are arranged in parallel, the inlet ends of the first branch pipe and the second branch pipe are communicated with a seawater supply pipeline, the outlet ends of the first branch pipe and the second branch pipe are communicated with the fire main pipe, and the fire main pipe is communicated with branch pipelines of a plurality of fire users; each pipeline is provided with a valve for controlling on-off. The invention has the beneficial effects that: the constant-pressure fire fighting system has the advantages that the multiple low-power water supply pumps are combined to form the constant-pressure fire fighting pump set, the main fire fighting water pump is replaced under the working condition that part of users need to supply water, the constant pressure of a fire fighting water main pipe is ensured, the power and the running frequency of the water supply pumps are adjusted according to different user requirements, the real-time water supply according to the requirements is realized, and the constant-pressure fire fighting system is economical and reliable.
Description
Technical Field
The invention relates to the technical field of ship fire fighting, in particular to a constant-pressure fire fighting system for a ship.
Background
The fire pump of the ship water fire extinguishing system is selected according to the requirement of a maximum water consumption user on a ship, the water supply capacity of the fire pump in actual work is far larger than the actual water demand of partial water users (often far larger than 1, 2 or even 3 fire-fighting water guns and other users), and the design margin is very large. If the fire pump is kept running all the time, it is not economical and energy-saving; if the fire pump is turned on again according to the user's demand, the actual water supply will be delayed. Therefore, the discharge capacity of the constant-speed fire pump and the supply between the water demand of the actual water user are not matched with the demand relation, the constant-speed fire pump is forced to work at a non-rated working condition point frequently, the use working condition of the fire pump is deteriorated, the pressure of a fire water main pipe is unstable, the pipe system is turbulent, and the service life of the fire pump, the water fire extinguishing system pipe system and the valve piece is shortened.
Disclosure of Invention
The invention aims to provide a constant-pressure fire fighting system for ships, which is stable in pressure in a main pipe, economical and reliable, and overcomes the defects of the prior art.
The technical scheme adopted by the invention is as follows: a constant-pressure fire fighting system for ships comprises a constant-pressure fire fighting pump set, a main fire pump, a fire water main pipe and a fire water supply pipeline, wherein the constant-pressure fire fighting pump set is arranged on a first branch pipe, the main fire pump is arranged on a second branch pipe, the first branch pipe and the second branch pipe are arranged in parallel, the inlet ends of the first branch pipe and the second branch pipe are both communicated with a seawater supply pipeline, the outlet ends of the first branch pipe and the second branch pipe are both communicated with the fire water main pipe, and the fire water main pipe is communicated with branch pipelines of a plurality of fire users; each pipeline is provided with a valve for controlling on-off.
According to the scheme, the constant-pressure fire fighting system further comprises a variable-frequency control box, a first electric control valve is arranged on a first branch pipe on the outlet side of the constant-pressure fire fighting pump group, a second electric control valve is arranged on a second branch pipe on the outlet side of the main fire fighting pump, a pressure gauge and a pressure transmitter are arranged on the fire fighting main pipe, and the first electric control valve, the second electric control valve, the pressure transmitter, the main fire fighting pump and the fire fighting pump group are respectively connected with the variable-frequency control box; the pressure transmitter is used for detecting a pressure signal on the fire fighting main pipe and sending the pressure signal to the variable frequency control box. And the variable frequency control box sends control commands to the constant pressure fire pump group, the main fire pump, the first electric control valve and the second electric control valve according to the pressure signals to execute the actions of all the structures.
According to the scheme, the fire fighting system is also provided with a low-pressure alarm device.
According to the scheme, the fire pump set comprises a plurality of water supply pumps which are arranged in parallel, and each water supply pump is connected with the frequency conversion control box and controlled by the frequency conversion control box.
According to the scheme, the inlet of the fire water supply pipeline is provided with the sea valve.
According to the scheme, the fire water supply pipeline is also provided with a water source control valve and a seawater filter.
The invention has the beneficial effects that: according to the constant-pressure fire-fighting system, a plurality of low-power water supply pumps are combined to form a constant-pressure fire-fighting pump set, a main fire-fighting water pump is replaced under the working condition that part of users need to supply water, the constant pressure of a fire-fighting water main pipe is ensured, the power and the running frequency of the water supply pumps are adjusted according to different user requirements, so that real-time water supply according to needs is realized, and the constant-pressure fire-fighting; the starting working condition of each water supply pump in the constant-pressure fire pump set is variable-frequency starting, so that the starting impact on a ship power station is reduced, the starting abrasion of the water supply pump is reduced, the use working condition is improved, and the service life is prolonged; the invention also has the manual and automatic switching function, can start, stop and switch the water supply pump on site, and can send out fault alarm to the upper-level system for operation display.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein: 1-a user controlled valve; 2-frequency conversion control box; 3-a first electrically controlled valve; 4-constant pressure fire pump set; 5-water source control valve; 6-seawater filter; 7-sea valve; 8-main fire pump; 9-a second electrically controlled valve; 10-a pressure gauge; 11-a pressure transmitter; 12-fire main; 13-a first branch pipe; 14-second branch.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1, a constant pressure fire fighting system for ships comprises a constant pressure fire fighting pump group 4, a main fire pump 8, a fire main 12 and a fire water supply pipeline, wherein the constant pressure fire fighting pump group 4 is installed on a first branch pipe 13, the main fire pump 8 is installed on a second branch pipe 14, the first branch pipe 13 and the second branch pipe 14 are arranged in parallel, the inlet ends of the first branch pipe 13 and the second branch pipe 14 are both communicated with a seawater supply pipeline, the outlet ends of the first branch pipe 13 and the second branch pipe 14 are both communicated with the fire main 12, and the fire main 12 is communicated with branch pipelines of a plurality of fire users; each pipeline is provided with a valve for controlling on-off. In this embodiment, a user control valve 1 is provided in a branch pipe of a fire user.
Preferably, the constant pressure fire extinguishing system still includes variable frequency control box 2, sets first automatically controlled valve 3 on the first branch pipe 13 of 4 exit sides of constant pressure fire pump package, sets second automatically controlled valve 9 on the second branch pipe 14 of 8 exit sides of main fire pump, is equipped with manometer 10 and pressure transmitter 11 on the fire control person in charge, first automatically controlled valve 3, second automatically controlled valve 9 and pressure transmitter 11, main fire pump 8 and fire pump package are equallyd divide and are linked to each other with variable frequency control box 2 respectively.
In this embodiment, pressure transmitter 11's quantity is arranged according to fire main 12's length to the accuracy of lift system to fire main 12 pressure monitoring, and then the reliability of lift system. The pressure transmitter 11 is used for detecting a pressure signal on the fire main and sending the pressure signal to the variable frequency control box 2. The variable frequency control box 2 sends control commands to the constant pressure fire pump group 4, the main fire pump 8, the first electric control valve 3 and the second electric control valve 9 according to the pressure signals to execute the actions of the structures; the variable frequency control box 2 also has the functions of receiving the command of the upper control system and feeding back the signal to the upper control system.
Preferably, the fire fighting system is further provided with a low pressure alarm device; when the pressure in the fire-fighting main pipe is lower than the set pressure value for alarming by the low-pressure alarm, the low-pressure alarm device gives an alarm.
Preferably, the fire pump group comprises a plurality of water supply pumps which are arranged in parallel, and each water supply pump is respectively connected with the variable frequency control box 2 and controlled by the variable frequency control box 2. In this embodiment, the fire pump group includes a plurality of water supply pumps with different powers, and the water supply pump has self-priming capability.
Preferably, the inlet of the fire water supply pipe is provided with a sea valve 7; the fire water supply pipeline is also provided with a water source control valve 5 and a seawater filter 6.
In this embodiment, the frequency conversion control box 2 has the following functions: (a) directly starting the constant-pressure fire pump unit 4; (b) the constant-pressure fire pump unit 4 has the functions of manual and automatic switching, and can be started and stopped on site; (c) the system can send out fault alarm to the upper-level control system and run and display; (d) the automatic frequency conversion, automatic pump adding, automatic pump reducing, automatic dormancy, automatic awakening and automatic alternate work of the water supply pump under multiple working modes in the constant-pressure fire pump unit 4 can be realized; the automatic frequency conversion, the automatic dormancy and the automatic awakening are carried out under the single-pump working mode; (e) the motor has the functions of overload protection, phase failure and short circuit protection, and gives out audible and visual alarm and stops when overload, phase failure and short circuit occur; (f) when the water demand of the user exceeds the water supply capacity of the constant-pressure water supply system, the constant-pressure water supply pump set is automatically closed, and the main fire pump 8 is started.
The constant-pressure fire fighting system disclosed by the invention can work fully automatically after a power supply is turned on, and a water supply pump in the constant-pressure fire fighting pump group 4 is automatically started/stopped according to the pressure in the fire main pipe 12. The working principle of the invention is actually a water pressure automatic control process: because the actual water demand of the user from the main fire water pipe 12 is dynamically changed, the pressure in the main fire water pipe 12 fluctuates, the pressure transmitter 11 installed on the main fire water pipe 12 automatically detects the pressure of the main fire water pipe 12 in real time and transmits the pressure to the variable frequency control box 2, the variable frequency control box 2 compares the received real-time pressure value in the main fire water pipe 12 with the preset pressure value, if the pressure value is inconsistent with the set pressure value, the variable frequency control box 2 gives a control signal to automatically adjust the power supply frequency (the working frequency range is adjustable) of the water supply pump or the main fire pump 8 in the constant pressure fire pump set 4, so as to change the rotating speed of the water supply pump or the main fire pump 8, so that the pressure value in the main fire water pipe 12 is as close to the preset pressure value as possible, and the pressure of the main fire water pipe 12 is kept constant (by adjusting the number of the working water, Frequency to match user water demand).
Under the condition that the water consumption of a fire-fighting user is not large, the variable frequency control box 2 automatically starts a No. 1 water supply pump 4-1 in the constant pressure fire-fighting pump group 4 and adjusts the frequency to meet the water consumption requirement of the user; along with the increase of water consumption of a fire-fighting user, the water pressure in the fire-fighting water main pipe 12 is reduced, the pressure transmitter 11 feeds back a pressure signal to the variable-frequency control box 2, the variable-frequency control box 2 sends a command to the constant-pressure fire-fighting pump group 4, the No. 2 water supply pump 4-2 or the No. N water supply pump 4-N in a dormant state is started, or the working frequency of the No. 1 water supply pump 4-1 is increased, so that the water consumption requirement of the user is met, and the pressure of the fire-fighting water main pipe; when the water consumption of the fire fighting user is reduced, the variable frequency control box 2 commands a part of water supply pumps 4-N in the constant pressure fire pump group 4 to reduce the working frequency or sleep according to the pressure signal fed back by the pressure transmitter 11 so as to keep the pressure of the fire main pipe 12 stable. When the constant-pressure fire pump unit 4 still can not satisfy the supply of fire control user water under the full load operating condition, the variable frequency control case 2 starts the work of main fire pump 8, and if necessary, starts the work of main fire pump 8 and constant-pressure fire pump unit 4 simultaneously. Under abnormal working conditions, the main fire pump 8 and the constant-pressure fire pump set 4 can be manually closed or started according to actual conditions.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or equivalent substitutions of some technical features, but any modifications, equivalents, improvements and the like within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (6)
1. A constant-pressure fire fighting system for ships is characterized by comprising a constant-pressure fire fighting pump set, a main fire pump, a fire main and a fire water supply pipeline, wherein the constant-pressure fire fighting pump set is arranged on a first branch pipe, the main fire pump is arranged on a second branch pipe, the first branch pipe and the second branch pipe are arranged in parallel, the inlet ends of the first branch pipe and the second branch pipe are communicated with a seawater supply pipeline, the outlet ends of the first branch pipe and the second branch pipe are communicated with the fire main, and the fire main is communicated with branch pipelines of a plurality of fire users; each pipeline is provided with a valve for controlling on-off.
2. The marine constant-pressure fire fighting system according to claim 1, wherein the constant-pressure fire fighting system further comprises a variable-frequency control box, a first electric control valve is arranged on a first branch pipe on the outlet side of the constant-pressure fire fighting pump group, a second electric control valve is arranged on a second branch pipe on the outlet side of the main fire fighting pump, a pressure gauge and a pressure transmitter are arranged on the fire fighting main pipe, and the first electric control valve, the second electric control valve and the pressure transmitter, the main fire fighting pump and the fire fighting pump group are respectively connected with the variable-frequency control box; the pressure transmitter is used for detecting a pressure signal on the fire fighting main pipe and sending the pressure signal to the variable frequency control box. And the variable frequency control box sends control commands to the constant pressure fire pump group, the main fire pump, the first electric control valve and the second electric control valve according to the pressure signals to execute the actions of all the structures.
3. Marine constant pressure fire fighting system according to claim 1, characterized in that said fire fighting system is further provided with a low pressure warning device.
4. The marine constant pressure fire fighting system according to claim 2, wherein said fire pump unit comprises a plurality of water supply pumps arranged in parallel, each of the water supply pumps being connected to and controlled by a variable frequency control box.
5. Marine constant pressure fire fighting system according to claim 1, wherein an inlet of said fire water supply pipe is provided with a sea chest.
6. The marine constant pressure fire fighting system according to claim 5, wherein a water source control valve and a seawater filter are further installed on the fire water supply line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011021.2A CN110721426A (en) | 2019-10-23 | 2019-10-23 | Marine constant-pressure fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011021.2A CN110721426A (en) | 2019-10-23 | 2019-10-23 | Marine constant-pressure fire extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110721426A true CN110721426A (en) | 2020-01-24 |
Family
ID=69221867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911011021.2A Pending CN110721426A (en) | 2019-10-23 | 2019-10-23 | Marine constant-pressure fire extinguishing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110721426A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426650A (en) * | 2020-11-23 | 2021-03-02 | 上海外高桥造船有限公司 | Fire fighting system, speed regulating device and speed regulating method of FPSO |
| CN112814084A (en) * | 2020-12-30 | 2021-05-18 | 三一汽车制造有限公司 | Fire-fighting water supply cooperative control method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221058A (en) * | 1998-12-23 | 1999-06-30 | 王道光 | Living and fire-fighting voltage-stablization, frequency-conversion constant-pressure variable water supply equipment |
| KR20140053808A (en) * | 2010-11-08 | 2014-05-08 | 마리오프 코포레이션 오와이 | Cotrol of the electric motors of a pump unit of a fire protection system |
| CN105477814A (en) * | 2016-01-29 | 2016-04-13 | 天津市建工工程总承包有限公司 | Intensive fire pump room capable of being overall carried |
| CN106592682A (en) * | 2016-10-26 | 2017-04-26 | 江苏南极机械有限责任公司 | Marine variable-frequency constant-pressure water supply system |
| CN206231606U (en) * | 2016-08-12 | 2017-06-09 | 招商局重工（江苏）有限公司 | A kind of constant pressure living pump station peculiar to vessel |
| CN206360014U (en) * | 2016-10-26 | 2017-07-28 | 江苏南极机械有限责任公司 | Constant pressure water supply system peculiar to vessel |
-
2019
- 2019-10-23 CN CN201911011021.2A patent/CN110721426A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221058A (en) * | 1998-12-23 | 1999-06-30 | 王道光 | Living and fire-fighting voltage-stablization, frequency-conversion constant-pressure variable water supply equipment |
| KR20140053808A (en) * | 2010-11-08 | 2014-05-08 | 마리오프 코포레이션 오와이 | Cotrol of the electric motors of a pump unit of a fire protection system |
| CN105477814A (en) * | 2016-01-29 | 2016-04-13 | 天津市建工工程总承包有限公司 | Intensive fire pump room capable of being overall carried |
| CN206231606U (en) * | 2016-08-12 | 2017-06-09 | 招商局重工（江苏）有限公司 | A kind of constant pressure living pump station peculiar to vessel |
| CN106592682A (en) * | 2016-10-26 | 2017-04-26 | 江苏南极机械有限责任公司 | Marine variable-frequency constant-pressure water supply system |
| CN206360014U (en) * | 2016-10-26 | 2017-07-28 | 江苏南极机械有限责任公司 | Constant pressure water supply system peculiar to vessel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112426650A (en) * | 2020-11-23 | 2021-03-02 | 上海外高桥造船有限公司 | Fire fighting system, speed regulating device and speed regulating method of FPSO |
| CN112814084A (en) * | 2020-12-30 | 2021-05-18 | 三一汽车制造有限公司 | Fire-fighting water supply cooperative control method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7758315B2 (en) | Pump controller for controlling pumps connected in tandem | |
| CN110721426A (en) | Marine constant-pressure fire extinguishing system | |
| CN208309676U (en) | A kind of intelligent frequency-conversion water system | |
| CN104074239A (en) | Full-automatic variable-frequency constant-pressure water supply system and control method thereof | |
| CN105971864B (en) | Pump group drive system | |
| CN114259676B (en) | Fire engine, fire water spraying system and control method thereof | |
| US7467927B2 (en) | Pumping arrangement | |
| CN107166648B (en) | A kind of air conditioner supply self adaptation control device and air conditioner | |
| CN103736227B (en) | A kind of protective voltage type fire-fighting system | |
| CN114396097B (en) | Intelligent water supply system | |
| CN203710576U (en) | Pressure-maintaining type fire extinguishing system | |
| RU2399396C1 (en) | Method of domestic and fire water system and unit for implementation thereof | |
| CN212956732U (en) | Intelligent compensation water supply system | |
| CN210797729U (en) | Overvoltage protection type water supply system | |
| JP2004316462A (en) | Method and device for controlling displacement of centrifugal compressor | |
| JP2012161502A (en) | Fire extinguishing pump system | |
| CN206902810U (en) | The intelligent stack-press device of one kind water inlet | |
| JP2016142184A (en) | Fire pump unit | |
| CN111572708A (en) | Pure pump type pressure water supply device | |
| CN205012411U (en) | Energy -conserving silence remote control's water supply equipment | |
| CN220550632U (en) | Compensation type double-cavity non-negative pressure water supply equipment | |
| CN210684871U (en) | Intelligent water supply system | |
| CN214221438U (en) | Gas delivery quantity lifting device of reciprocating compressor | |
| JP7475658B2 (en) | Water supply equipment | |
| CN212055075U (en) | Protection system of water supply unit pump body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200124 |